Is there a classification of methods for inferring genetic interactions? I mean some work published, utilizes genetical genomics data. Is this possible with expression data alone? And how about perturbation screens? I guess they all need information about mutants/genetic variations?
BioGRID is an interaction database, and they catalogue interactions by (among other things) the class of experiment that discovered them. See http://wiki.thebiogrid.org/doku.php/experimental_systems#genetic_interactions
Other than that, you should look at recent reviews and publications, but you will easily get lost unless you figure out some important particulars, like: